/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/MoviePipelineOutputBase.h
Called once when all frames have been produced for the pipeline. Use this as an indicator to start flushing to disk. Async processes can be started here andHasFinishedProcessing()will be called each frame until all all containers return true, at which point Finalize will be called.
void BeginFinalize()